<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>

<%
out.println(request.getParameter("n1"));
out.println(request.getParameterValues("n1")[0]+ "" + request.getParameterValues("n1")[1]) ;
%>
<form action="1.jsp">
<input type="text" name="n1"/>
<input type="text" name="n1"/>
<input type="submit"/>

</form>
</body>
</html>